Manufacturing method of liquid crystal display device

Abstract

Manufacturing method of a liquid crystal display device having a TFT substrate with a display area in which pixels are arranged, a counter substrate, a sealing material formed in a periphery to bond the TFT and counter substrates, and a liquid crystal layer interposed between an orientation film on the TFT substrate and an orientation film on the counter substrate. The method includes the steps of forming a first color filter, a second color filter, or a third color filter corresponding to each of the pixels in the display area of the TFT substrate, and forming an orientation film stopper by overlapping a portion of the first color filter, the second color filter, or the third color filter, in an area between the display area and the sealing material. A profile of the orientation film formed in the TFT substrate is defined by the orientation film stopper.

What is claimed is: 
     
       1. Manufacturing method of a liquid crystal display device comprising:
 a TFT substrate including a display area in which pixels each having a pixel electrode and a TFT are arranged in a matrix form; 
 a counter substrate disposed opposite to the TFT substrate; 
 a sealing material formed in a periphery to bond the TFT substrate and the counter substrate together; and 
 a liquid crystal layer interposed between an orientation film formed in the TFT substrate and an orientation film formed on the counter substrate; 
 the manufacturing method comprising the steps of: 
 forming a first color filter, a second color filter, or a third color filter corresponding to each of the pixels in the display area of the TFT substrate; and 
 forming an orientation film stopper by overlapping a portion of the first color filter, the second color filter, or the third color filter, in an area between the display area and the sealing material; 
 wherein a profile of the orientation film formed in the TFT substrate is defined by the orientation film stopper; and 
 wherein the orientation film stopper formed by overlapping the portion of the first color filter, the second color filter, or the third color filter formed on the TFT substrate has a height less than a height of a gap between the TFT substrate and the counter substrate so that the orientation film stopper does not form a spacer having the height of the gap and a top surface which contacts with the counter substrate. 
 
     
     
       2. Manufacturing method of the liquid crystal display device according to  claim 1 , wherein the orientation film stopper is formed by overlapping a portion of two layers of color filters. 
     
     
       3. Manufacturing method of the liquid crystal display device according to  claim 1 , wherein the orientation film stopper is formed by overlapping a portion of three layers of color filters. 
     
     
       4. Manufacturing method of a liquid crystal display device comprising:
 a TFT substrate including a display area in which pixels each having a pixel electrode and a TFT are arranged in a matrix form; 
 a counter substrate disposed opposite to the TFT substrate; 
 a sealing material formed in a periphery to bond the TFT substrate and the counter substrate together; and 
 a liquid crystal layer interposed between an orientation film formed on the TFT substrate and an orientation film formed in the counter substrate; 
 the manufacturing method comprising the steps of: 
 forming a columnar spacer for defining a distance between the TFT substrate and the counter substrate; 
 forming a first color filter, a second color filter, or a third color filter corresponding to each of the pixels in the display area of the TFT substrate; 
 forming a first orientation film stopper by overlapping a portion of the first color filter, the second color filter, or the third color filter, in an area between the display area of the TFT substrate and the sealing material; 
 wherein a profile of the orientation film formed in the TFT substrate is defined by the first orientation film stopper; and 
 forming a second orientation film stopper by the same process of the columnar spacer in an area between the display area of the counter substrate and the sealing material; 
 wherein a profile of the orientation film formed in the counter substrate is defined by the second orientation film stopper. 
 
     
     
       5. Manufacturing method of a liquid crystal display device comprising:
 a TFT substrate including a display area in which pixels each having a pixel electrode and a TFT are arranged in a matrix form; 
 a counter substrate disposed opposite to the TFT substrate; 
 a sealing material formed in a periphery to bond the TFT substrate and the counter substrate together; and 
 a liquid crystal layer interposed between an orientation film formed in the TFT substrate and an orientation film formed in the counter substrate; 
 the manufacturing method comprising the steps of: 
 forming a first color filter, a second color filter, or a third color filter corresponding to each of the pixels in the display area of the TFT substrate; 
 forming a light shielding film on the TFT, in addition to the first color filter, the second color filter, or the third color filter; and 
 forming an orientation film stopper by overlapping a portion of the light shielding film and the first color filter, the second color filter, or the third color filter, in an area between the display area of the TFT substrate and the sealing material; 
 wherein a profile of the orientation film formed in the TFT substrate is defined by the orientation film stopper.